Fireplace heater



Patented June 27, 1933 vEoEEn'r r. JENSEN, or SEATTLE, wAsHINGToN FIREPLACE HEATER.

Application fi led February 24, 1330. Serial No 431,003.

This invention relates to improvements in fireplace heaters, havlng more particularly reference to improvements in the fireplace heater disclosed and claimed in my United States Letters Patent, No. 1,484,305; issued February 19, 1924, and the primary aim of the present invention is to simplify and improve the construction of said patented fireplace heater and to obtain an increased amount of heat with the same consumption of fuel. n V

Contemplatedby the present invention is an improved fireplace heater embodying cer tain new and useful features, principally among which are a hot'air shaft interposed between the fines thereof adapted to re-- ccive heated air directly from the fireplace heater hotair'chamber and indirectly by radiation from the flues on each side thereof; a relatively heavy metallic door for clos-'v 1110 on occasions the passage-between thehot air chamber and the fireplace, whereby an.

open fire may be started in the latter and the portion of thehot air chamber adapted to be utilized on occasions when only a small j unit of the grate structure, as it would ap: pear when removed from its correlated basket.

amount of heat is desired; a stove for the 30 hot air chamber having a novel'type of selfcleaning smoke chamber provided therein; a novel type of grate structure for the stove,

' whereby control and cleaning of the same is facilitated and expedited, and a system of dampers for the fireplace heater, whereby the'heat from. the hot air chamber may be selectively directed to "the rooms. desired, all.

- of which are important features andobjects of the invention and are to be correlated in the broad'aim of enhancing the efficiency of my improved fireplace heater for general use.

.The above, and additional objects'which =will hereinafter be more specifically treated are attained by such means as are shown in I the accompanying drawings, described in the. following specification andthen more clearly pointed out in the claims, which are appended hereto and form part of this ap' 5.0 plication. Y

Z the present invention.

heat from said hot air chamber directed 25 to other rooms of the building; an auxiliary electrical heating unit disposed in the upper l/Vith reference to the drawings, in which there isillustrated one embodiment of the invention, and throughout the several views of which like characters of reference designate similar parts:

Figure 1 is a view, partlyin front eleva- "tion and partly in transverse vertical section, of a fireplace heater comprehended by Fig. 2 isa longitudinal vertical section-of 5 the] same taken through line -2-2 of Fig. 1.

Figs. '3 and 4 are horizontal sections taken through lines 3-3 and 44,respectively, of Fig. 2; j

Figs. 5, 6 and 7 are horizontal sections 5 taken through lines 55, 66 and 7 7,-re-

specti'vely of Fig. 1. a

' Fig. Sis a perspective view of the heater casing, as it would'appear, with its correlated grate and heater front removed, and e with certain portions of said casing broken awayw"v M1 Fig. 9 is a top plan View of my novel grate structure,.as itwouldappear when removed from the heater casing.

'Flg. 10 1s a vertlcal transverse sectionof same'taken through line 10-10 of Fig. 9.

Fig. 11 isa top plan view of the tilting ings, the numeral 10 designates 'a chimney structure adapted tobe supported upon the no foundation of a buildingand to extend upwardly through the main or ground floor 11 and through the upper floor 11 of said building, substantially in the" manner illustrated in'Figs. 1 and 2-, I

Between the floors '11 and 11, the chimney structure 10 is provided with an open fireplace 12, which. preferably opens into the living room of the building, said fireplace having the usual throat; 13 which communicates with a chimney flue 14. Disposed in the lower end portion of the throat 13 is a damper 15 for regulating the efiective size hereinafter set forth, is preferably bolted or,

-- otherwise-detachably connected to the stove.

. Adraft regulator 21 for the ash pit 19 is mounted in a well known manner upon a door, 20

t-for. normally closing an opening therein, -through which ashesv are removed from the. 'ash'pit 19. The front wall 20 is also pro-. vided with an opening through which fuel is supplied to the-firebox of the stove 17, said 22 hingedly connected to the front wall 20,

opening being normally closed by a fireboxdoor 23 having a centrally disposed thorn-H zrdraft regulator23a mounted thereon.

A vessel 24, see Fig. 2, containing a suit z ableramount of water is desirably provided. within the hot-air chamber 16 to furnish humidity to the air therein, said vessel being .adapted to project through the side wall- .ofthejchimney structure 10 and bein pro- .i-videdexteriorly thereof with a water filling -orsupply opening normally closed by a;

hinged cap or closure 25, all as more'clearly 1: illustrated in Fig. 1.

-.Gommunicating with the mainnbody POT-2' tion of the stove 17 at the juncture of itsupv1; per and rear walls is a chamber 17, through.

which the products of combustion :from the -:tireboxare adapted topass, and'leading from the upper portion of the rear :wall of said --chamber is a smoke pipe 26 connected to a flue 27, said smoke pipe having the usual-damper .=-26 -and check draft 26 all as more clearly.

shown in Figs. 2 and 5. By fabricating the .-ehamber 17 a in the manner herein shown and .-descr1bed 1t Wlll be observedthat the same is self-cleaning and that no SOOtwCMI-COllBCt.

- or accumulate on the walls thereof, as obtain-sv in smokechambers of drum-like formation.

.The flue 27 is formed within the chimney: structure 10 and extends verticallyfrom the foundation of the building through the en ;tire height of said chimney structure, said f-ilue being provided at or near its lower end ..with a :cleanout door 40, see Figs. 1 and 3...

From the foregoing description and by re-m ferr-ing to Figs. 1 and 5, it will be apparent that the products of combustionfrom the stove 17, willpass through the smoke-pipe -26. and thence upwardly through the flue 27, as indicated by-the arrows in Fig. 1.

Leading from the upper rear end of the hot-air chamber 16 is a series of hot-air pipes 28 having the usual dampers 29 mounted therein, said pipes having their inner ends connected to a metallic plate or cover 42 seated within the chimney structure 10, substantially in the manner illustrated in Figs. 2 and 4, while the outer ends of said pipes 28 are adapted to communicate with rooms to be supplied with heat.

The numeral 30--designates an electrical heating unit, of any well known type, disposed within a recess 8O formed in the upper rear wall of the hot-air chamber 16, access being had to said recess through a door or cover. plate. 46 mountedupon the rear. face of the chimney structure 10.

Intel-posed between the fireplace; 12sand theupper endof-thehot-rair. chamber 16 is a relatively heavy. metallic door 31. ofuhigh :heat resisting properties. To prevent. any

refuse from= entering or. being thrown. into the hot-air. chamber 16 Iprovidethe upper endmof the same-with azmetallic screen..31

.of suitable nieslnsaid screen being disposed;

behind the door 31 and being fiXQdlYKSBCHIGd lILflnY well known manner to therframe thereof.

A- hot-air shaft: 32 is formed within the chimney structure 10 between. the llues. 14*

and 27 having its lower end connectedwith ithe hot-air chamber 16 at a point abovethe fireplace door 31, said; shaft being adapted to receive. direct heat from the hot-air chamber 16 and also radiated heat from-the flues 14f and 27.

Hot air registers designated by the numeralsz33, 34 and 35, respectively, are provided to regulate the flow of heated air from. the

chamber. 16 andithe shaft32. The register 33 being" located in the main or ground floor of th'ewbuildingfor controlling flow; ofwheated air fromthe chamber 16, While the registers 34 and 35 are located on the second floor of. the building substantially at. the upper: end of the shaft 32 forcontrolling the flow of heated airtherefrom. In thee-present disclosure I have elected for-purposes of illustration to show abuilding having'two' floors,

but, it is to. be understood that myv improved fireplace heater is adaptablefor use in. build- .ingshavingymore than two floors, in which "event it is also to be understood .that the hot air shaft 32 will extend to the topmost floor and .willber provided on each floor with one or more .llOt-Jitll' registers depending upon the number of rooms on said floor.

At. the juncture of the hot-air chamber 16 and the hot-air shaft32I provide axdamper 36 of thev usual type, said damper being mounted upon a deck plate 87 seated or em-.

bedded within the chimney structure 10 and adapted to be actuated byach'ain' 38, which projects through'the rear wall of said structure, as shown more clearly in Figs. 2and 4'.

It is to be here noted that the deck plate 37 extends the full length and width of the hot air chamber 16 and forms and constitutes a cover for the upper end thereof, as Will be manifest and apparent by referring to Figs. 1, 2 and 4.

To facilitate and expedite the dumping of ashes from the fireplace 12 I provide the fioor of the same with an ash chute 39 which leads to the flue 27, wherefrom the ashes are 1 vide the fireplace 12 with the firebrick lining the lower portion see-Fig. 8. 'Pivotally mounted as at .18" for 41, which latter is more clearly illustrated in Fig. 2.

Disposed transversely within the hot-air chamber 16, at a point therein midway its length and below the plate 42 carrying the hot air pipes 28, is a T-shaped metallic bar 43 adapted to normally support the oifset upper portion of the rear wall of the chamber 16. Pivotally connected to and depending from the bar 43 is a swinging damper 44 adapted to selectively regulate and control the flow of heated air from the hot-air chamber 16 to the fireplace 12 or to the hot-air pipes 28, as indicated by arrows in Fig. 2,- said damp-er being actuated by a rod 45 extending through the front wall of the chimney structure 10. It being manifest and apparent from the foregoing and by reference to the drawings that by regulating the dam per 44, all of the heated air from the hot air chamber 16 may be directed to the lirelace 12 or such damper may be swung over and all of the heated'air directed to the hotair pipes 28 as desired and foundnecessary.

It will be observed by referring particularly to Figs. 1, 2 and 3 that theend and rear walls of the stove 17 are spaced from the opposing walls ofthe. hot-air chamber 16,

45 thi f th purposeof permitting the locating of the cold air intake pipes 47 atthe lowest possible point in the hotair chamber 16, so that the fullest advantage may be taken of all heat radiating from the stove 17.

To facilitate andexpediterfabrication of my improved fireplace heater I preferto employ in conjunction with the brickwork of same, angle iron frames 48 particularly at the openings in said brickwork for insertion and removal of the Steve '17 and for the damper 15. v L

Coming now to a more detailed description of my novel grate structure designated generally by the numeral 18', which comprises a heavy metallic grate basket 18*, preferably square or rectangular in formation and adapted, to be supported or seated upon a sill 17 fixedly secured to the inner wallsof of the stove or heater 17,

tilting movement within the lower portion of the basket 18 is a rectangular or square grate 18 having a concentric circular opening 18 formed therein. Normally seating for oscillating movement within the opening18 is a circular grate disk 18*, wherefrom depends spaced parallel legs 18 connectedat their lower ends by a bar or rod 18 which letter at its forward end isprovided with a socket 18. Integrally formed upon and curving upwardly from one of the legs 18 is a lug 18 the upper end of which is adapted to normally abut the underside of the grate 18 as more clearly illustrated in Fig. '12. A handle 18 is provided to facilitate oscillating the grate disk 18 and tilting or rocking the square grate 18, which is effected by inserting the inner end of said handle in the socket 18 and imparting oscillative or rocking movementsthereto in an obvious manner,-whereby the grate 18 may be tilted to such an angle to insure of complete dumping of the ashes or clinkers therefrom, while oscillation of the circular grate 18 is effected for shaking down the ashes from time to time while the fire is burning.

In the use of my invention the fireplace 12 and the'stove 17 may be operated either separately or together by a'suitable regulation of the several dampers. When the stove is employed, air admitted through the cold air intakes 47 into the heating chamber 16 becomes hot by radiated heat from the fire in the stove 17.

When a fire is started in the stove 17 the damper 2661., see Fig. 4, is opened to cause the smoke from the stove to be delivered into the chimney line 27, and such damper is manipulated from time to time in accordance with the fire desired. During the day and early evening the door 31 and register 33 are open and the damper 44 is swung over to the extreme left to cut off the flow of heated air to the hot-air pipes 28 and direct all of such heated air to the fireplace 12 and the register 33 and through the latterinto the rooms containing the same. When the heated air is thus delivered through the fireplace 12, the throat damper thereof is preferably and advantageously closed to afford the maximum utilization of heated air from the hotair chamber 18. Later in the evening the damper 36 and registers 34 and may be opened and the fireplace door 31 closed to direct the heated air upwardly through the hot air shaft 32 and through the registers 34 and 35 into the rooms containing the same. Simultaneously with the heating of the last: mentioned rooms a portion of the heated air from the hot air chamber 16 may be di rected to the hot-air pipes 28, by swinging the damper to the vertical position illustrated in Fig. 2, so that with the dampers 29 of the pipes 28 open the heated air willpass to the rooms served bythe pipes 28. Again if it is desired the damper 4-5 may be swung fully over to the right hand side and all of the heated air from the chamber 16 directed to the pipes 28. In some instances only a small amount of heat is desired, suflicient to take the chill. from the room containing the fireplace, in which event the electrical heating unit 30 is utilized, with the door 31 open and the dampers l5 and 36 closed. Again an open fire may be desired, in which event the door 31 is closed and the damper 15 opened and a fire started in the fireplace 12 in the usual manner, in the latter case the stove 17 may or may not be employed for heating the other rooms.

By referring to Figs. 2 and 3, t will be observed, that by fabricating my improved fireplace heater in the manner herein shown and described that the stove 17 may be easil and readily removed for repairs or replai ment from the hot air chamber 16, by merel removing the front wall of said stove and t lting the latter slightly and then withdrawing same through the opening in the chimney structure.

A very important advantage of the present fireplace heater structure is that the stove or heater 1? is disposed directly under the fire place 12, which ordinarily is used only for an ash pit, so that the same material used in building such an ash pit sufficiently strong to carry a fire place provides a place for stove 17, thereby forming and constituting what practically amounts to a brick furnace located so that it will give direct heat to all of the principal rooms in the building and by reason of its compact nature the entire chimney structure is one solid heating un t which even when the fire is extinguished in the stove will continue to give off heat for hours. Further, the life of such chimney structure will be practically that of the build ing in which it is installed. It may be foui l necessary from time to time to replace the stove 17 but this may be done in a very short time without interfering with any of the hot air pipes or other correlated parts of my fire place heater. The present fireplace heater structure, if desired, may be constructed in a very elaborate and expensive manner or it may be constructed in a Wery simple and economical manner while still embodying the same solid construction.

Mai'iifestly, therefore, by employing my new and improved fireplace heater a greater amount of heat is obtained therefrom with the same consumption of fuel than was or is obtainable in my former fireplace heater structure. This for the reason that in the present structure I have provided the hot air shaft 82 which receives radia ed heat from the fines 14: and 27 disposed on each s de thereof, which heat would be lost if such shaft was not provided.

While I have herein shown and described the invention with sufilcient detail to enable those skilled in the art to which it pertains to understand the mode of construction and the principles involved, it is to be understood that there is no intentional limitation herein to the specific form and precise details of construction shown and described, ex cept as expressly defined by the appended claims, and that various modifications of the same may be resorted to without departing from the spirit of the invention or the benefits derivable therefrom. It is also to be understood that certain features of the invention herein disclosed may be employed in and with combinations other than that shown and described.

ll hat I claim as my invention and desire to secure Letters Patent is 1. In chimney structure having a fireplace a fine therefor, an air heating chamber coi'nmunicating with the fireplace, a second flue, an air shaft interposed between said flues adapted to receive radiated heat therefrom, and a stove in said air heating chainber connected to said second flue.

2. In a chimney structure having a fireplace, a line therefor, an air heating chamber adapted to comn'iunicate with the fireplace, a second flue an air shaft'interposed between said fiues adapted to receive radiated heat therefrom, stove in said air heating chamber connected to said second fine, and means for regulating theflow of heated air from said fireplace and said air shaft.

3. In a chimney structure having a fireplace, a line therefor, an air heating chamber communicating with the fireplace, a second fine, a hot air shaft communicating with said air heating chamber and interposed between said fines for receiving radiated heat therefrom, and a stove in said air heating chamber connected to said second flue.

4. In a chimney structure having a fireplace, a flue therefor, an air heating chamber adapted to communicate with the fireplace, a second flue, a hot air shaft communicating with said air heating chamber and interposed between said fiuesforreceiving radiated heat therefrom, a stove in said air heating chamber connected to said second flue and means for regulating the flow of heated air from the fireplace and hot air shaft.

5. In a chimney structure having a fireplace, a fine therefor, an air heating chamber adapted to communicate with the fireplace, a second flue, a hot air shaft adapted to communicate with said air heating chamber and to-be interposed between said fines for receiving radiated heat therefrom, a stove in said air heating chamber connected to said second line, means forselect-ively regulating the flow of heated air from the air heating chamber to the fireplace and hot air shaft,

and means for regulating the flow of heated air from said hot air shaft.

6. In a chimney structure having a fireplace, a flue therefor, an air heating chamber adapted to communicate with the fireplace, a second flue, a stove in said air heating chamber connected to said second flue, and a door in saidfireplace for regulating the flow of heated air from the air heating chamber to the fireplace.

7. In a chimney structure having a fireplace, a flue therefor, a damper in said flue, an air heating chamber adapted to communicate with the fireplace, a second flue, a stove in said air heating chamber connected to said second flue, and a door in the back wall of said fireplace for regulating the flow of heated air from the air heating chamber to the fireplace.

8. In a chimney structure having a fireplace, a flue therefor, a damper in said flue, an air heating chamber having a passage leading therefrom to the fireplace,- a transversely disposed screen of heat resisting material in said passage adapted to permit free flow of heated air therethrough, a second flue, and a stove in said air heating chamber connected to said second flue.

9. In a chimney structure having a fireplace, a flue therefor, a damper insaid flue, an air heating chamber having a passage leading therefrom to the fireplace, a wire mesh screen covering the upper end of said passage adapted to permit free flow of heated air therethrough, a door for the upper end of the passage for regulating the flow of heated air therefrom to the fireplace, a second flue, and a stove in said air heating chamber connected to said second flue.

10. In a chimney structure having a fireplace, a flue therefor, an air heating chamber communicating with said fireplace, a hot-air pipe leading from said air heating chamber, a second flue, a stove in said air heating chamber connected to said second flue, and

means for selectively regulating the flow of Y heated air from the air heating chamber to said fireplace and said hot air pipe.

11.- In a chimney structure having a fireplace, a flue therefor, an air heating chamber having a passage leading therefrom to the fireplace, a hot-air pipe leading from the air heating chamber adjacent the juncture of the latter with said passage, a second flue, a stove in said air heating chamber connected to said wcond flue, and a swinging damper interposed between said hot-air pipe and said passage for selectively regulating the flow of heated air from the air heating chamber to the hot-air pipe and the fireplace.

12. In a chimney structure having a fireplace, a flue therefor, a damper for said flue, an air heating chamber, a passage connecting the fireplace with said air heating cham ber, a closure for said passage controllable from the firepiace, a second flue, a stove in said air heating chamber having its rear wall disposed in spaced relation to the opposing wall of the same, a stovepipe sealed from the air heatingchamber having one end connected to said stove and its opposite end connected to said second. flue exteriorly of such chamber, and damper devices for controlling combustion of fuel in the stove.

13. In a chimney structure having a fireplace, a flue therefor, a damper for said flue, an air heating chamber, a passage connecting the fireplace with said air heating chamber,.a, closure for said passageway controllabio from the fireplace, a second flue, a hot-air shaft leading from said passage and interposed between said flues adapted to. receive heated air from the passage and radiated heat from the flues, a damper for said shaft located at the juncture of the same with said passage for regulating the flow of heated air thercbetween, a register for regulating the flow of heated air from said shaft, a hot-air pipe leading from the air heating chamber adjacent the juncture of the latter with the passage leading to the fireplace, a damper in said pipe,a swinging damper interposed between said pipe and said passage for selectively regulating the flow of heated. air from the air heating chamber to either of same, a stove in said air heating chamber, a stovepipe connecting said stove with said second flue, and damper devices for controlling combustion of fuel in the stove.

14:. In a chimney structure having a fireplace, a flue therefor, an air heating chamber,

. a passage connecting the fireplace with said air heating chamber, a closure for sald passage controllable from the fireplace, a registerfor regulating the flow of heated air from said passage, a second flue, a hot-air shaft leading from said passage and interposed between said flues adapted to receive heated air from the passage and radiated heat from the fines, a damper between said passage and shaft, a register for regulating the flow of heated air from said shaft, and a stove in said air heating chamber connected to said second flue.

In testimony whereof I affix my signature.

ROBERT P. JENSEN. 

